Wheel center



FIG. 1 is a front elevational view of a wheel center showing our new design;

FIG 2 is a fragmentary sectional view thereof taken along the line 2--2 of FIG. 1;

FIG. 3 is a sectional view thereof taken along the line 3--3 of FIG. 1;

FIG. 4 is a sectional view thereof taken along the line 4--4 of FIG. 3. 

The ornamental design for a wheel center, as shown. 